CN101617534A - Video display devices and image display method - Google Patents
Video display devices and image display method Download PDFInfo
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- CN101617534A CN101617534A CN200880005441A CN200880005441A CN101617534A CN 101617534 A CN101617534 A CN 101617534A CN 200880005441 A CN200880005441 A CN 200880005441A CN 200880005441 A CN200880005441 A CN 200880005441A CN 101617534 A CN101617534 A CN 101617534A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/4223—Cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Closed-Circuit Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
For a plurality of video images being shown as a plurality of pictures in the picture, compare with any other quality of video image, can improve the quality of the video image corresponding with the video importation of the image pickup part of wanting Be Controlled image capture visual angle etc., and the operability when improving image pickup and partly controlling.Client receives the video data that distributes from a plurality of camera units, and a plurality of video images are presented on the picture of display as a plurality of pictures.Simultaneously, the receiving velocity of the video data that raising distributes from will be pan, inclination etc. controlled camera unit, and reduce from the receiving velocity of the video data of different cameral unit distribution, be higher than the frame rate of different cameral unit thereby be used in demonstration by the frame rate of the split screen of the video image of wanting controlled camera unit to pick up, and can be at camera control period identification video image visually clearly.
Description
Technical field
[0001] the present invention relates to be used for go up the video display devices and the image display method of the video image that shows that the video importation by a plurality of cameras etc. provides at picture (screen).
Background technology
[0002] as the video display devices that is used on picture showing by the video image of picked-ups such as camera, can use for example be used for by the Network Transmission vision signal and on the image displaying part of diverse location the video display system of display video image.The video display system of this use network is used to the monitoring camera system etc. of the video image of the picked-up in concentrated area monitored object zone a long way off.
[0003], becomes known for improving the operability of each camera and alleviate the camera control system (referring to Patent Document 1) of the load on the network as such video display system.In this camera control system, during the button that on operating in operation screen, provides, be assigned to the angle of this button before the setting of camera operation cell command camera administrative unit.The transmission that the camera administrative unit is forbidden video data is until being provided with special angle, and changes this angle apace.Therefore, quicken the camera angle change, and can reduce the load on network at that time.
[0004] yet, above-mentioned conventional camera control system relates to following problem: camera operation unit (client rs PC) is suppressed at during pan/tilt operation the transmission from the video image of camera, improves with the operability of pan/inclination of exchanging the camera that will be operated (wanting Be Controlled) for.Therefore, during pan/tilt operation on picture video image displayed become intermittently, therefore and be difficult to when watching video image displayed, adjust well the pan/inclination of camera.
[0005] above-mentioned camera control system produces the single-image demonstration that only shows from the video image of a camera on the display part; Yet, need make the user can the many pictures in a monitor that is used for concentrating a long way off the monitoring camera system that monitors show that a glance is seen over and check a plurality of video images with regard to vision ground.Usually, be used on the display part, showing that the video display system of a plurality of pictures relates to the capabilities limits of network and unit, and therefore need reduce the frame rate of each picture, to suppress the load of the unit on the display part.Owing to almost determined the transmission capacity and the disposal ability of the video data in the whole system, so especially when increasing simultaneously the picture displayed number, limited mobile image demonstration.Equally in this case, during pan/tilt operation on picture video image displayed become intermittently, and be difficult to as the single-image to show pan/inclination of adjusting camera well.
Patent documentation 1: the open No.136246/1998 of Japanese Patent Laid
Summary of the invention
The problem to be solved in the present invention
[0006] as mentioned above, in traditional video display devices, video image displayed becomes coarse during the camera control operation of pan, inclination etc., and therefore has the problem that causes because be difficult to fine adjust camera when watching video image displayed.Specifically, show that in order in a monitor, to produce the many pictures that show a plurality of video images the system resource of network, unit etc., video image demonstration speed etc. reduces, and hinders the situation of camera adjustment also may take place.
[0007] in view of above-mentioned, target of the present invention provides a kind of video display devices and image display method, compare with any other quality of video image, this video display devices and image display method can improve the quality of the video image corresponding with the video importation of the image pickup part of wanting Be Controlled image capture visual angle etc., and the operability when improving image pickup and partly controlling is to be shown as a plurality of video images in a plurality of pictures in the picture.
The means of dealing with problems
[0008] video display devices of the present invention is the video display devices that is used for showing the video image that is provided by a plurality of videos importation on picture, and comprise: a plurality of video images that picture display part branch, this picture display part branch are used for being provided by a plurality of videos importation that comprises at least one image pickup part are shown as a plurality of pictures of a picture; And display video quality control part, want controlled image pickup part if in a plurality of videos importation, exist, then compare with being used to show the renewal frequency from the picture of the video image of any other video importation, the display video quality control partly improves and is used for dividing the renewal frequency that shows by the picture of the video image of wanting controlled image pickup partly to absorb at picture display part.
Therefore, in order to be shown as a plurality of pictures in the picture by the video image that a plurality of videos importation provides, for example want Be Controlled pan/inclination to wait if in a plurality of videos importation, exist to be used to adjust at least one image pickup part at image pickup zone, visual angle etc., then compare with any other image quality, can improve and want the corresponding image quality of controlled image pickup part, and when this image pickup is partly carried out the operation of pan, inclination etc., can improve operability.
[0009] video display devices of the present invention further comprises: whether controlling object determining section, this controlling object determining section are used for determining existing in a plurality of videos importation is wanted controlled image pickup part; And control time determining section, whether over and done with this control time determining section be used for determining since image pickup partly is placed in outside the controlling object preset time, wherein, when over and done with preset time, display video quality control part will be in picture display part divides be placed in controlling object outside image pickup partly the renewal frequency of corresponding picture return to original renewal frequency.
Therefore, the renewal frequency of the picture that image pickup part that will be outer with being placed in controlling object is corresponding returns to original renewal frequency, thereby the quality of each display frame automatically can be returned to original state, and can improve easness in response to the use of practical situation.
[0010] the present invention is above-mentioned video display devices, wherein, the display video quality control partly improves from wanting the distribution frame rate of the video data that controlled image pickup partly distributes, and reduces the distribution frame rate of the video data that distributes from any other video importation.
Therefore, for the picture corresponding, can change the renewal frequency of picture and the quality of adjustment picture with wanting controlled image pickup part.At this moment, if limited the transmission capacity etc. of the transmission line etc. of distribution network, then can improve the quality of the picture of controlling object, and can in transmission capacity, suitably adjust a plurality of display frames.
[0011] the present invention is above-mentioned video display devices, wherein, the display video quality control partly improves to by wanting controlled image pick-up section to divide the decoded frame speed of the video data of coding in decoding, and reduces to the decoded frame speed in being decoded by the video data of any other video importation coding.
Therefore, for the picture corresponding, can change the renewal frequency of picture, and adjust the quality of picture with wanting controlled image pickup part.At this moment, the display video quality control partly need not and wants controlled image pickup partly to communicate by letter, and makes it possible to easily realize video display devices, and does not consider the structure of the transmission line of network etc.This one-to-many communication such as multicast for the transmission capacity that wherein can reduce transmission line is effective.
[0012] the present invention is above-mentioned video display devices, wherein, the display video quality control partly improves the frame rate of drawing in use is drawn from the video data of wanting controlled image pickup part, and reduces the frame rate of drawing in use is drawn from the video data of any other video importation.
Therefore, for the picture corresponding, can change the renewal frequency of picture, and adjust the quality of picture with wanting controlled image pickup part.At this moment, the display video quality control partly need not and wants controlled image pickup partly to communicate by letter, and makes it possible to easily realize video display devices, and does not consider the structure of the transmission line of network etc.This one-to-many communication such as multicast for the transmission capacity that wherein can reduce transmission line is effective.
[0013] the present invention is above-mentioned video display devices, wherein, the display video quality control partly improves the renewal frequency that is used to show by the picture of the video image of wanting controlled image pickup partly to absorb, and compare with the picture quality of the video image that distributes from any other video importation, improve from wanting the picture quality of the video image that controlled image pickup partly distributes.
Therefore, except improving the renewal frequency of picture, for example, outside the code efficiency of compression ratio etc., the resolution of adjustment image, focusing etc. are used to make picture quality good, thereby can make the picture corresponding clearer, and can further improve operability with wanting controlled image pickup part.
[0014] the present invention is above-mentioned video display devices, wherein, the display video quality control partly use from the distribution frame rate of wanting the video data that controlled image pickup partly distributes, video data is decoded decoded frame speed and using draw at least two of frame rate of video data in drawing to change renewal frequency.
Therefore, make up the change of various frame rate, thereby can improve the flexibility when changing the renewal frequency of the picture corresponding with wanting controlled image pickup part by expectation.
[0015] video display devices of the present invention is to be used for showing the video image that is partly absorbed by image pickup on picture, and comprises: the picture display part branch, and this picture display part branch is used to show the video image that is partly provided by image pickup; The controlling object determining section, this controlling object determining section is used to determine whether to control the image pickup part; And display video quality control part, if control image pickup part, if then the renewal frequency of applied picture is compared when not controlling the image pickup part, the display video quality control partly improves the renewal frequency that is used for dividing at picture display part the picture of the video image that shows that this image pickup partly absorbs.
Therefore, can make being used to when image pickup partly is placed in the controlling object show that the renewal frequency of the picture of the video image that is partly provided by image pickup is higher than the renewal frequency of applied picture when image pickup partly is placed in outside the controlling object, and the operability can improve image pickup and partly control the time.
[0016] image display method of the present invention is the image display method that shows on picture in the video image that is provided by a plurality of videos importation, and have: the picture step display will be shown as a plurality of pictures of a picture by a plurality of video images that a plurality of videos importation that comprises at least one image pickup part provides in picture display part divides; Whether the controlling object determining step is determined to exist in a plurality of videos importation and is wanted controlled image pickup part; And display video quality control step, want controlled image pickup part if in a plurality of videos importation, exist, then compare with being used to show the renewal frequency from the picture of the video image of any other video importation, this display video quality control step improves the renewal frequency that shows by the picture of the video image of wanting controlled image pick-up section branch picked-up in picture display part divides.
[0017] information processor of the present invention is the information processor that is connected to a plurality of videos importation that comprises at least one image pickup part, be used to use the video data display video image on display that provides by the video importation, and comprise: picture display part branch, this picture display part branch are used for will being shown as a plurality of pictures of a picture by a plurality of video images that a plurality of videos importation that comprises the image pickup part provides on display; Whether controlling object determining section, this controlling object determining section are used for being determined at a plurality of videos importation and exist and want controlled image pickup part; And display video quality control part, want controlled image pickup part if in a plurality of videos importation, exist, then compare with being used to show the renewal frequency from the picture of the video image of any other video importation, the display video quality control partly improves the renewal frequency that is used for showing by the picture of the video image of wanting controlled image pickup partly to absorb on display.
[0018] the present invention also is provided for making computer as any device of above-mentioned video display devices and the program that acts on.
Advantage of the present invention
[0019] the present invention can provide video display devices and image display method, compare with any other apparatus and method, can improve the quality of the video image corresponding with the video importation of the image pickup part of wanting Be Controlled image capture visual angle etc., and improve the operability when image pickup is partly controlled, a plurality of video images are shown as a plurality of pictures in the picture.
Description of drawings
[0020]
Fig. 1 is the diagrammatic sketch in order to the structure that the many video monitoring systems in the first embodiment of the invention are shown.
Fig. 2 is the flow chart in order to the video display operation process in the many video monitoring systems that are illustrated in embodiment.
Fig. 3 is in order to the flow chart of the distribution frame rate change processing procedure among first embodiment to be shown.
Fig. 4 is the flow chart in order to the video distribution operating process that the camera unit among the embodiment is shown.
Fig. 5 is the flow chart in order to operation that the camera unit among the embodiment is shown and setting operation process.
Fig. 6 is the diagram in order to the monitoring video picture that shows on display among the schematically illustrated embodiment.
Fig. 7 is in order to the flow chart of the decoded frame speed change processing procedure in the second embodiment of the invention to be shown.
Fig. 8 is in order to the flow chart that frame rate changes processing procedure of drawing in the third embodiment of the invention to be shown.
The description of Reference numeral
[0021]
10 networks
20,30 cameras
21 video importations
22 camera control sections
23 video coding parts
24 video coding control sections
25 video distribution parts
26 video distribution control sections
40 client rs PCs
41 video reception parts
42 video decode control sections
43,44 video decode parts
45, the video memory of 46 decodings
47 videos synthesize the display part
51 video display control sections
60 displays
70 operation parts
Embodiment
[0022] each embodiment illustrates the structure example to the application of many video monitoring systems, wherein connect a plurality of camera units and client rs PC, and in a picture, will be shown as a plurality of pictures simultaneously by the video image of a plurality of camera units picked-ups as the display that is connected to client rs PC of the example of video display devices by network.
[0023] (first embodiment)
Fig. 1 is the diagrammatic sketch in order to the structure that shows the many video monitoring systems in the first embodiment of the invention.In many video monitoring systems, connecting each by network 10 becomes camera unit 20 and 30 and the client rs PC 40 that becomes video reception part and video processing part in a plurality of image pickups parts that video importation and video send part.For example, use IP network etc., and can connect the camera unit at remote location place, be used to make observer (guard) can vision ground to check the video image of shooting area at the moment as network 10.For the supervision purpose of the precalculated position that is used for fail safe etc. and presumptive area and use many video monitoring systems.In this embodiment, the situation that 16 camera units are connected to network 10 will be discussed as example, but some camera units that only drawn in Fig. 1, and other camera unit is not shown.As the video importation, not only use camera unit, but also be used for the video tape recorder of recording video data, be used for the memory cell of stored video data etc.The number of camera unit and the number of client rs PC are unrestricted.
[0024] camera unit 20 is made up of video importation 21, camera control section 22, video coding part 23, video coding control section 24, video distribution part 25 and video distribution control section 26.Camera unit 30 has with camera unit 20 similarly constructs, and therefore will no longer discuss.
[0025] video importation 21 has the image pickup part that is used to take subject and its video data of output.Camera control section 22 control pan/incline directions to be being used to adjust the image pickup zone of image pickup part, and carry out zoom control, focus on and adjust etc. to be used to adjust the image pickup visual angle.Video coding part 23 is compressed and coding video frequency data according to predetermined coded system.For example, use JPEG, MPEG-4 etc. as coded system.Video coding control section 24 comes control of video coded portion 23 according to the order from client rs PC 40, and changes the code efficiency of compression ratio etc. in coding video frequency data.Video distribution part 25 is assigned to client rs PC 40 by network 10 with the video data of encoding.Video distribution control section 26 control of video distribution portion 25, and change the distribution frame rate of number of the frame of the time per unit from the video data that camera unit distributes according to order from client rs PC 40.
[0026] client rs PC 40 has and the similar hardware construction of universal PC.Client rs PC 40 is made up of the synthetic display part 47 of video memory 45 and 46, video, video coding administrative section 48, video distribution administrative section 49, video decode administrative section 50, video display control section 51, video display tube reason part 52 and the camera administrative section 53 of video reception part 41, video decode control section 42, video decode part 43 and 44, decoding.Client rs PC 40 also is provided with and is used to make operation side display of watching 60 and the operation part 70 that is used to make the operation of operation side.
[0027] video reception part 41 receives from camera unit 20 and 30 video datas that distribute.Video decode control section 42 will be assigned to the video decode part 43 and 44 corresponding to camera unit from the video datas that camera unit 20 and 30 receives, and control of video decoded portion 43 and 44 and change decoded frame speed etc.The video data of video decode part 43 and 44 pairs of codings is decoded.The video memory 45 of decoding and 46 storages are by the video data of video decode part 43 and 44 decodings.The video data in the video memory 45 and 46 that is stored in decoding is read in the synthetic display part 47 of video, and carry out many pictures and show that (many pictures show: demonstration control Multi-screendisplay), be used for being shown as a plurality of pictures simultaneously, so that be each channel (CH) display video data on display 60 at a picture.
[0028] video coding administrative section 48 is the code efficiency of the video coding control section 24 specified compression rates etc. in each of camera unit 20 and 30 by network 10.Video distribution administrative section 49 is distribution frame rate of the video distribution control section 26 designated data in each of camera unit 20 and 30 etc.Video decode administrative section 50 is that video decode control section 42 is specified decoded frame speed etc.The video data of video display control section 51 control stores in each of the video memory 45 of decoding and 46 draw frame rate.As the control of drawing frame rate, carry out following control: the time per unit that the time per unit that changes the video data in the video memory be stored in decoding upgrades the control of the number of frame, change the video data that reads from the video memory of decoding read frame number control or change the control of the viewing area of the video data the video memory that is stored in decoding.Video display tube reason part 52 is the frame rate of drawing of video display control section 51 designated data.
[0029] camera administrative section 53 comes camera control section 22 in each of order camera unit 20 and 30 to carry out control, the zoom control of pan/incline directions, focus on and adjust etc. according to the order from operation part 70.
[0030] when the CPU in the client rs PC 40 carried out the control program in the storage medium that is stored in memory, memory device etc. and carries out predetermined processing, the function of the each several part in the client rs PC 40 was implemented.In above-mentioned structure, wait the function that realizes that picture display part divides by the synthetic display part 47 of the video of client rs PC 40, display 60.Video coding control section 24 and the video decode control section 42 of video distribution control section 26 and client rs PC 40 and the function that video display control section 51 is realized display video quality control part by camera unit 20.Camera administrative section 53 by client rs PC 40 waits the function that realizes controlling object determining section and control time determining section.
[0031] operation of the many video monitoring systems with above-mentioned structure will be discussed.Fig. 2 is in order to the flow chart of the video display operation process in many video monitoring systems to be shown.Handling procedure is stored in the storage medium of memory in the client rs PC 40, memory device etc., and periodically repeats by the CPU in the client rs PC 40 is whenever predetermined.
[0032] at first, client rs PC 40 receives the video datas (step S1) that distribute from camera unit 20 and 30 by video reception part 41, and by video decode part 43 and 44 decode this video data that receives and with this storage in the video memory 45 and 46 of decoding (step S2).Client rs PC 40 reads by the synthetic display part 47 of video and synthesizes the video data in the video memory 45 and 46 that is stored in decoding and generate synthetic video data (step S3).The synthetic video data that client rs PC 40 is provided by the synthetic display part 47 of video to display 60 outputs, and make display 60 produce many pictures demonstrations (step S4).Then, termination.
[0033] Fig. 3 is the flow chart that changes processing procedure in order to the distribution frame rate that the distribution frame rate that is used to change the video data that distributes from each camera unit is shown.This handling procedure is stored in the storage medium in the client rs PC 40, and repeats (for example, 1 second) by the every predetermined period of the CPU in the client rs PC 40.
[0034] at first, client rs PC 40 monitors and is shown as the state of a control (step S11) of the corresponding camera unit of each channel of a plurality of pictures on the display 60 by camera administrative section 53.Here, camera administrative section 53 is checked the camera unit of operating by operation part 70, thus the state of a control of monitoring camera unit.
Whether [0035] as the result of the state of a control that monitors each camera unit, client rs PC 40 determines whether to carry out camera control, that is, exist and want controlled camera unit (step S12).If carry out camera control, then in order to improve from the receiving velocity of the channel of wanting the video data that controlled camera unit distributes and to reduce the receiving velocity of any other channel, client rs PC 40 orders corresponding camera unit 20 and 30 to change the distribution frame rate (step S13) of video datas by video distribution administrative section 49.According to this order, in camera unit, carry out control, make raising at the distribution frame rate of wanting controlled camera unit, and reduce distribution frame rate at any other camera unit.Then, termination.
[0036] on the other hand, if do not carry out camera control at step S12 place, then client rs PC 40 is determined from having carried out whether over and done with the given time interval (for example, 10 seconds) (step S14) since the last time camera control.When not passing by the given time interval, termination.On the other hand, when over and done with given time interval, client rs PC 40 comes each camera unit of order will distribute frame rate to return to original initial value (step S15) by video distribution administrative section 49.Then, termination.
[0037] at step S11 place, when the CPU in the client rs PC 40 carries out polling operation for the camera unit of each channel, can determine whether to exist the camera unit of wanting Be Controlled (operation), perhaps can be by accepting to determine to want controlled camera unit from the interrupt signal of wanting controlled camera unit output.
[0038] Fig. 4 is the flow chart in order to the video distribution operating process that camera unit 20 is shown.Whenever predetermined timing repeats this operation.At first, camera unit 20 comes captured image by video importation 21 and generates its video data (step S21).Camera unit 20 comes coding video frequency data (step S22) according to predetermined coded system by video coding part 23.Camera unit 20 is by the video data (step S23) of video distribution part 25 process networks 10 to client rs PC 40 allocated code.Then, terminating operation.
[0039] Fig. 5 is in order to the operation that camera unit 20 is shown and the flow chart of setting operation process.Repeat this operation every predetermined period.At first, camera unit 20 determines whether to have received order (step S31) from client rs PC 40 by network 10.When the order that received from client rs PC 40, camera unit 20 determines that whether command context are the camera control (step S32) of pan/tilt operation etc.If command context is camera control, then camera unit 20 camera of carrying out pan/inclinations etc. by camera control section 22 according to command context is controlled (step S33).Then, terminating operation.
[0040] on the other hand, if be not camera control in step S32 place command context, then camera unit 20 is determined command context (step S34).If command context is to change to distribute frame rate, then camera unit 20 changes the distribution frame rate (step S35) of the video data that is distributed in the video distribution part 25 by video distribution control section 26.Then, terminating operation.On the other hand, if be to change picture quality in step S34 place command context, then camera unit 20 changes the code efficiency (step S36) of compression of video data rate coded in video coding part 23 etc. by video coding control section 24.Then, terminating operation.If command context is to change picture quality, then in this embodiment, change with the code efficiency of compression ratio etc. to change picture quality, but this pattern is not so limited, and can change the resolution of the image that the image pickup by camera unit partly absorbs or can adjust the degree that defocuses of focusing.
[0041] Fig. 6 is in order to be shown schematically in the diagram of the monitoring video picture that shows on the display 60.As mentioned above, 16 camera units have been installed in many monitoring videos system of this embodiment.The video image that on the picture of each channel of the display 60 that is divided into 16 pictures, shows the video data that distributes based on camera unit from correspondence.Here, control camera unit 20, and being used for based on the video data that distributes from camera unit 20 on the split screen 60a of display video image with the frame rate of 16fps new video image more.On the other hand, what its split screen 60b in office goes up with the frame rate of 1fps new video image more.Corresponding to the transmission capacity and the disposal ability of system, split screen 60a that can controlled camera unit is arranged to greatest frame rate, and can adopt rest image (0fps) to be used for any other split screen 60b in extreme case.Show according to this many pictures, when operation side carries out operation for the pan/inclination of camera unit 20 etc. when watching display 20, he or she can be clear that the profile and the motion of subject, the operability when making it possible to improve camera control on the split screen 60a of the video image of wanting controlled camera unit.
[0042] therefore, in order to produce the many pictures demonstrations that are used for showing simultaneously from the video image of a plurality of camera units, the video monitoring system of first embodiment improves from the receiving velocity of the video data of wanting controlled camera unit distribution, and reduces from the receiving velocity of the video data of any other camera unit distribution.Therefore, compare, be used to show that the frame rate (renewal frequency) of the split screen of the video image of wanting controlled camera unit uprises with the frame rate of any other camera unit, and the quality of needed video image can improve control the time.Therefore, if the transmission capacity of whole system and disposal ability are restricted, then can be at camera control period identification video image visually clearly, and when carrying out pan/inclinations etc. and operate, can improve operability for camera unit.
[0043] in this embodiment, improved the distribution frame rate of wanting the distribution frame rate of controlled camera and having reduced any other camera; Yet, if there is enough and to spare in the transmission capacity of communication, can only improve the distribution frame rate of wanting controlled camera, and not change the distribution frame rate of any other camera.
[0044] (second embodiment)
Second embodiment is characterised in that, when decoding in client rs PC is taken by camera unit and during the video data of coding, every frame all changes the decoded frame speed of conversion speed.That is, for wanting controlled camera unit to improve decoded frame speed, and reduce decoded frame speed for any other camera unit.For example, when using the video data of JPEG, MPEG-4 etc., can the control of application decoder frame rate.
The hardware construction of many video monitoring systems of [0045] second embodiment and above-mentioned first embodiment are similar.Following description concentrates on the peculiar operation of second embodiment.
[0046] Fig. 7 is in order to the flow chart of the decoded frame speed change processing procedure among second embodiment to be shown.This handling procedure is stored in the storage medium of client rs PC 40, and every predetermined period comes repetition by the CPU in the client rs PC 40 (for example, 1 second).Those steps identical with above-mentioned first embodiment are represented with identical number of steps and will no longer be discussed.
[0047] controls if carry out camera at step S12 place, then client rs PC 40 comes order video decode control section 42 to improve and the corresponding decoded frame speed of channel from the video data of wanting controlled camera unit distribution by video decode administrative section 50, and reduces the decoded frame speed (step S13A) of any other channel.When receiving order, video decode control section 42 improves the decoded frame speed of the video decode part corresponding with wanting controlled camera unit, and reduces the decoded frame speed of the video decode part corresponding with any other camera unit.For example, if the coded system in the camera unit is MPEG-4, then when changing decoded frame speed, specific picture that only will controlled camera unit is configured to full rate, and sparse (thinout) other picture.If all video datas all are made up of key frame (I frame), then have only and want the specific picture of controlled camera unit to remain unchanged, and for the sparse key frame of any other picture.
[0048] when at step S14 place during over and done with given time interval, client rs PC 40 by video decode administrative section 50 order video decode control sections 42 with the decoded frame rate recoveries of all video decodes parts to original initial value (step S15A).When receiving order, video decode control section 42 arrives original initial value with the decoded frame rate recovery of all video decode parts.
[0049] therefore, identical with first embodiment, in the video monitoring system of second embodiment, frame rate compared with the split screen of any other camera unit, the frame rate that is used to show the split screen of the video image of wanting controlled camera unit uprises, and can improve the quality of the needed video image of visual identity when being used for camera control.Therefore, can improve when carry out pan/inclinations for camera unit and wait operability when operating.Owing in client rs PC, carry out all processing, so become unnecessary with communicating by letter of each camera unit and can easily realize this system by network.Can also alleviate the load on the network, and for communicating by letter such as the such one-to-many of multicast, this system is effective.
[0050] in this embodiment, improved and wanted the decoded frame speed of controlled camera, and reduced the decoded frame speed of any other camera; Yet, if there is enough and to spare in the disposal ability of client rs PC, can only improve the decoded frame speed of wanting controlled camera, and not change the decoded frame speed of any other camera.
[0051] (the 3rd embodiment)
The 3rd embodiment is characterised in that, when the frame rate of the split screen that is used to show the video image of wanting controlled camera unit changed, frame rate was drawn in control.As mentioned above, as the control of drawing frame rate, carry out following control: the time per unit that the time per unit that changes the video data in the video memory be stored in decoding upgrades the control of the number of frame, change the video data that reads from the video memory of decoding read frame number control or change the control of the viewing area of the video data the video memory that is stored in decoding.For example, when using the video data of JPEG, MPEG-4 etc., can use and draw frame rate control.
The hardware construction of many video monitoring systems of [0052] the 3rd embodiment is similar to above-mentioned first embodiment.Following description concentrates on the peculiar operation of the 3rd embodiment.
[0053] Fig. 8 is in order to the flow chart that frame rate changes processing procedure of drawing among the 3rd embodiment to be shown.This handling procedure is stored in the storage medium in the client rs PC, and every predetermined period comes repetition by the CPU in the client rs PC (for example, 1 second).Those steps identical with above-mentioned first embodiment are represented with identical number of steps, and will no longer be discussed.
[0054] controls if carry out camera at step S12 place, then client rs PC 40 by video display tube reason part 52 come order video display control section 51 improve with from the channel of the video data of wanting controlled camera unit distribution corresponding draw frame rate, and reduce any other channel draw frame rate (step S13B).When receiving order, video display control section 51 improves the frame rate of drawing with the video memory of will controlled camera unit corresponding decoding, and reduce the decoding corresponding with any other camera unit video memory draw frame rate.That is, video display control section 51 is carried out: the time per unit that the time per unit that changes the video data in the video memory that is stored in decoding upgrades the control of the number of frame, change the video data that reads from the video memory of decoding read frame number control or change the control of the viewing area of the video data the video memory that is stored in decoding.
[0055] when at step S14 place during over and done with given time interval, client rs PC
40 come order video display control section 51 to return to original initial value (step S15B) about the frame rate of drawing of the video memory of all decodings by video display tube reason part 52.When receiving order, video display control section 51 will return to original initial value about the frame rate of drawing of the video memory of all decodings.
[0056] therefore, the video monitoring system of the 3rd embodiment can also provide those advantages that are similar to above-mentioned second embodiment.In the 3rd embodiment, improved the frame rate of drawing of wanting controlled camera, and reduced the frame rate of drawing of any other camera; Yet, if there is enough and to spare in the disposal ability of client rs PC, can only improve the frame rate of drawing of wanting controlled camera, and not change the frame rate of drawing of any other camera.
[0057] is to be understood that; item shown in the invention is not restricted to the embodiments described; and the present invention wishes that also those skilled in the art can be based on describing and technique known make a change, revise and use, and described change, modification and application be comprised in will protected scope in.
[0058] for example, can make up distribution frame rate, the decoded frame speed shown in the foregoing description, draw frame rate, picture quality (code efficiency of compression ratio etc., the resolution of image, focusing) etc. by expectation, and wish further to improve operability by suitably making up them.
[0059] the present invention can also be applicable to and wherein operate a plurality of camera units simultaneously and want the number of controlled camera unit to become 2 or more a plurality of situations.For this reason, for a plurality of camera units, can change above-mentioned distribution frame rate, decoded frame speed in a similar manner, draw frame rate, picture quality etc.Yet, in this case, to compare with the situation that will control a camera unit, the change degree has reduced.
[0060] as mentioned above, according to embodiment, show in order to produce many pictures, be used for to be shown as a plurality of pictures of a picture by the video image of picked-ups such as a plurality of cameras, compare with the renewal frequency of the picture of any other camera, the renewal frequency of the picture corresponding with wanting controlled camera uprises, and the operability can improve camera control the time.Can be used in demonstration and be higher than the renewal frequency of the picture that is not interposing at controlling object by the renewal frequency of the picture of the video image of the camera picked-up that places controlling object, and the operability can improve camera control the time.Therefore, show in order to use a plurality of video images to produce many pictures, compare with quality, can improve the quality of the video image corresponding, and can improve operability with the image pickup part of wanting controlled camera etc. corresponding to the video image of any other camera etc.
[0061], it will be apparent to those skilled in the art that under the situation that does not break away from the spirit and scope of the present invention and can make various changes and modification although describe the present invention in detail with reference to specific embodiment.
The present invention is based on the Japanese patent application of submitting on February 19th, 2007 (No.2007-037899), it is incorporated herein by reference.
Industrial applicibility
[0062] the present invention has these advantages: a plurality of video images are shown as in the picture A plurality of pictures; Compare with any other quality of video image, can improve and will be controlled The matter of the video image that the video input part of the image pickup part at image capture visual angle etc. is corresponding Amount, and the operability can improve image pickup and partly control the time; And can be used for the video limit Device processed, image display method etc., the application such as described video limits device, image display method Looking of the video image that partly provides in the video input that shows at picture by a plurality of cameras etc. more The frequency surveillance.
Claims (11)
1. video display devices that is used on picture showing the video image that is provided by a plurality of videos importation comprises:
Picture display part branch, described picture display part divide a plurality of video images are shown as a plurality of pictures in the picture, and described a plurality of video images are assigned to provide by the described a plurality of video input parts that comprise at least one image pickup part; And
Display video quality control part, want controlled image pickup part if in described a plurality of videos importation, exist, then compare with being used to show the renewal frequency by the picture of the video image of any other video input part branch picked-up, described display video quality control partly improves and is used for dividing the renewal frequency that shows by the picture of the described video image of wanting controlled image pick-up section branch picked-up at described picture display part.
2. video display devices according to claim 1 further comprises:
Whether controlling object determining section, described controlling object determining section are determined to exist in described a plurality of videos importation is wanted controlled image pickup part; And
Control time determining section, described control time determining section be whether over and done with preset time since determining outside described image pickup partly is placed in described controlling object,
Wherein, when over and done with described preset time, described display video quality control part will be in described picture display part divides be placed in described controlling object outside described image pickup partly the renewal frequency of corresponding picture return to original renewal frequency.
3. video display devices according to claim 1 and 2, wherein
Described display video quality control partly improves the distribution frame rate of wanting the video data that controlled image pickup partly distributes from described, and reduces the distribution frame rate of the video data that distributes from described any other video importation.
4. video display devices according to claim 1 and 2,
Wherein, described display video quality control partly improves in decoding by the described decoded frame speed of wanting in the video data that controlled image pick-up section divides coding, and reduces in decoding by the decoded frame speed in the video data of described any other video importation coding.
5. video display devices according to claim 1 and 2,
Wherein, described display video quality control partly improves in the frame rate of using in drawing from the described video data of wanting controlled image pickup part of drawing, and reduces in the frame rate of using in drawing from the video data of described any other video importation of drawing.
6. video display devices according to claim 1 and 2,
Wherein, described display video quality control partly improves and is used to show the renewal frequency of wanting the picture of the video image that controlled image pickup partly absorbs by described, and makes the picture quality that is higher than the video image that distributes from described any other video importation from the described picture quality of wanting the video image that controlled image pickup partly distributes.
7. according to claim 1,2 or 6 described video display devices, wherein, described display video quality control partly use from described want the distribution frame rate of the video data that controlled image pickup partly distributes, the described video data of decoding decoded frame speed and using draw at least two of frame rate of described video data in drawing to change described renewal frequency.
8. video display devices that is used on picture showing the video image that is partly absorbed by image pickup comprises:
Picture display part branch, described picture display part divide the video image that is partly provided by described image pickup are provided;
The controlling object determining section, described controlling object determining section determines whether to control described image pickup part; And
Display video quality control part, if control described image pickup part, if then compare with the renewal frequency of not controlling the applied picture of described image pick-up section timesharing, described display video quality control partly improves the renewal frequency that is used for dividing at described picture display part the picture that shows the video image that is partly absorbed by described image pickup.
9. image display method that the video image that provides by a plurality of videos importation is provided on picture, described method comprises:
The picture step display is shown as a plurality of video images a plurality of pictures in the picture in picture display part divides, described a plurality of video images are assigned to provide by a plurality of video input parts that comprise at least one image pickup part;
Whether the controlling object determining step is determined to exist in described a plurality of videos importation and is wanted controlled image pickup part, and
The display video quality control step, want controlled image pickup part if in described a plurality of videos importation, exist, then compare, improve to be used for dividing and show the renewal frequency of wanting the picture of the video image that controlled image pickup partly absorbs by described at described picture display part with being used to show renewal frequency from the picture of the video image of any other video importation.
10. information processor, described information processor is connected to a plurality of videos importation that comprises at least one image pickup part and uses the described video data that is provided by described video importation to come display video image on display, and described information processor comprises:
Picture display part branch, described picture display part divide a plurality of video images are shown as a plurality of pictures in the picture on the described display, and described a plurality of video images are assigned to provide by the described a plurality of video input parts that comprise described image pickup part;
Whether controlling object determining section, described controlling object determining section are determined to exist in described a plurality of videos importation is wanted controlled image pickup part; And
Display video quality control part, want controlled image pickup part if in described a plurality of videos importation, exist, then compare with being used to show the renewal frequency from the picture of the video image of any other video importation, described display video quality control partly improves be used for showing the renewal frequency of wanting the picture of the video image that controlled image pickup partly absorbs by described on described display.
11. a program, described program are used to make any one device effect of computer conduct according to any one described video display devices of claim 1 to 8.
Applications Claiming Priority (3)
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| JP037899/2007 | 2007-02-19 | ||
| JP2007037899A JP4804378B2 (en) | 2007-02-19 | 2007-02-19 | Video display device and video display method |
| PCT/JP2008/000203 WO2008102525A1 (en) | 2007-02-19 | 2008-02-12 | Image display device and image display method |
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| EP (1) | EP2124445B1 (en) |
| JP (1) | JP4804378B2 (en) |
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| CN103209349A (en) * | 2012-01-11 | 2013-07-17 | Lg电子株式会社 | Computing Device For Performing At Least One Function And Method For Controlling The Same |
| CN110035225A (en) * | 2017-12-28 | 2019-07-19 | 豪威科技股份有限公司 | The dynamic frequency scalable of energy-optimised quality driving for intelligent camera system |
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| JP5724346B2 (en) | 2010-12-09 | 2015-05-27 | ソニー株式会社 | Video display device, video display system, video display method, and program |
| JP6016332B2 (en) * | 2011-05-12 | 2016-10-26 | キヤノン株式会社 | Image processing apparatus and image processing method |
| US20140118541A1 (en) * | 2012-10-26 | 2014-05-01 | Sensormatic Electronics, LLC | Transcoding mixing and distribution system and method for a video security system |
| JP6213094B2 (en) * | 2013-09-20 | 2017-10-18 | 株式会社Ｊｖｃケンウッド | Camera system, master camera device and slave camera device |
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| CN102281390A (en) * | 2010-06-11 | 2011-12-14 | 索尼公司 | Image processing apparatus and image processing method |
| CN103209349A (en) * | 2012-01-11 | 2013-07-17 | Lg电子株式会社 | Computing Device For Performing At Least One Function And Method For Controlling The Same |
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| CN110035225A (en) * | 2017-12-28 | 2019-07-19 | 豪威科技股份有限公司 | The dynamic frequency scalable of energy-optimised quality driving for intelligent camera system |
| CN110035225B (en) * | 2017-12-28 | 2021-01-22 | 豪威科技股份有限公司 | Energy optimized mass driven dynamic frequency adjustment for smart camera systems |
Also Published As
| Publication number | Publication date |
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| US8934016B2 (en) | 2015-01-13 |
| CN101617534B (en) | 2012-11-07 |
| US20100066836A1 (en) | 2010-03-18 |
| JP4804378B2 (en) | 2011-11-02 |
| EP2124445B1 (en) | 2013-01-09 |
| EP2124445A4 (en) | 2012-02-29 |
| EP2124445A1 (en) | 2009-11-25 |
| JP2008205700A (en) | 2008-09-04 |
| WO2008102525A1 (en) | 2008-08-28 |
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